Wheel lift for wheel truing machine



Dec. 20, 1955 E. s. CISCO 2,727,343

WHEEL LIFT FOR WHEEL TRUING MACHINE Filed April 14, 1953 5 Sheets-Sheet l H I i I INVENZ'OR. [Maya/d & (2660,

Dec. 20, 1955 E. s. CISCO 2,727,343

WHEEL LIFT FOR WHEEL TRUING MACHINE Filed April 14, 1953 5 Sheets-Sheet 2 IN V EN TOR. Fail/42m 5 (.2660,

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WHEEL LIFT. FOR WHEEL TRUING MACHINE Filed April 14, 1953 5 Sheets-Sheet 3 .(1 lnl ,1

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Dec. 20, 1955 E. s. CISCO 2,7 7

WHEEL LIFT FOR WHEEL TRUING MACHINE Filed April 14, 1953 5 Sheets-Sheet 4 IN V EN TOR.

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Dec. 20, 1955 E. s. clsco 2,727,343

WHEEL LIFT FOR WHEEL TRUING MACHINE Filed April 14, 1953 5 Sheets-Sheet 5 IN VEN TOR.

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2,727,343 Patented Dec. 20, 1955 Fice United States Patentfifi WHEEL LIFT "FOR WHEEIT TRUING MACHINE Edward :5, Cisco, Highland ulntk, assignor to "Standard Railway Equipment Manufacturing :Company, Chicago, 111., acorporafion of'Delaware r Application April 14,1953, Serial-No; 348,700

6 Claimstu (CL-51 236) This invention relates to "a 'ma'chinefortruing wheels of -a railway vehicle having 'fianged wheels which operate onrails under conditions which subject them to consider able abuse, 'causing flat spots, or other surface irregulari ties that must be'removed and the wheel returned to'a condition of roundness.

The present invention'is animprovement 'of'the Inachine shown and described in PatentNo. 2,622,378, dated December 23, 1952, and is concerned primarily with a novel means for temporarily elevating .the' pair of wheels to-be' trued while the cutting or milling elements of the machine are brought into operating "position'un'der the elevated wheels, which is the principal object ofthe" i n' vention. The truing operation-is then accomplished in" a relatively short time, without the necessity 'of'remo'ving the wheels-from the vehicleas'atpresent? The ve'-" hicle isthusremoved from service for but a short period of time;

Another object of the invention is to provideanar rangement whereby the-means for elevating the'wheels to' 1 be trued simultaneously position the supporting and 'driving wheels for-rotating the wheels to be'trued.

Other objects and advantages 'of'the invention will appear in the following descriptionthereof.

Referring now to-the accompanying drawingsfo'rming part'of this application and wherein like reference char acters indicate like parts;

Fig. 1 is a plan view-of the pit and railroad track "as sembly with the truing machine installed therein.

Fig. 2 is an enlarged transverse-sectional view taken through the pit showing in side elevation the centralpor tion of the truing machine including thewheelliftar rangement, the-view-being taken alongthe line 2--2 of Fig.1.

Fig. 3 is an enlarged longitudinal sectional'view'taken throughthe pit and truing machine along' line 3-3 of" Fig. l, and illustrating, in broken-lines,'-a railwaycar truck mounted in proper. place for wheel truing.

Fig. 4 is an enlarged, fragmentary, longitudinalsec tion on the line 4-4 of Fig. 1.

Fig. 5 is an enlarged, fragmentary, longitudinalsection taken on the line 55 of Fig. 1.-

For purposes of illustration but a single embodiment or" the wheel lift arrangement is shown -in--the drawings and will be described hereinafter, and since the invention is an improvement of the machine shownin the herein-- above mentioned Patent-No. 2,622,378 'of December 23, e

1952, only somuch of that machineis herein illustrated and described as is necessary to show the cooperation therewith.

Referring now to the drawings, and particularly to Figs 1, there is illustrated a wheel truing machine,-indicated generally at 30, which is mounted in a pit indicated at*31.

A pair of railroad tracks 32, extend away from both sides of the pit, and, extending over the pit',-is a track'assembly which'includes rail members 35+35,3636, 37'' 37 'and 38-38, that, together may'form-a continuous track acrossthe pit. r The rail members136-36 are slidable between two-positions, and-areshown in'the retracted position in Fig." 1 so as to leave a break in the continuous track to members-4I and 42 -are bored to rotatably receive and support therebetween a shaft 43, upon whichis pivotally mounted the entire'c-fr'ame'assembly which includes a centralhorizontallydisposed portion 44 and upstanding ar'ms 45"45,'uponthe' upp'er portion'of'each of which isa centering mechanism 46. Each centering mechanism a is constructed andarranged so that it can be raised or lowered vertically simultaneously, and the centers 47-47 ofwhi'ch may be moved-inor out horizontallyso as to" be able to engage the axle centers of'a vehicle truck, indicated in dotted lines at 48, Fig. 3.

Also mounted in each upstanding arm 45 is a rotary cutter tool which is more or less diagrammatically shown at 5059f 'arid which is movable up or down substantially vertically with the C-frame assembly so as to occur when desiredunder the wheels to be operated upon.

All of the-above is shown and described in detail in the-aforementioned Patent No. 2,622,378, dated December' 23," 1952, 'thedetails of'whichform no part of mypresent' inventionfexcept in combination with my improved wheel lift-"arrangement for such a wheel truing machine; which' whe'ellift'will now be described.

Disposed transversely of the track assembly is provided a rotatable'shaft 55, on each endjof which is mounted a supporting and driving wheel 56. This shaft is'jour naled-inapair 'of'spaced arms 57 forming part of an oscillating frame-indicated generally at 58, the lower" endsof which-arms are pivotally mounted on aligned stub shafts-59jeach journaledin spaced upstanding wallsfi'fi of a fixed casting 61,-anchored on top of a wall 33' form my part of the pitstructure.

Keyed'to the sashes-(Fig.- 4) adjacent one arm 57 is a gear which meshes with an idler gear 66,'mounted on"shaft 59.'-' Gear meshes with pinion gear 68,'integrall-y formed -with larger gear "69, which meshes with rigidly .as

pinion gearyindicated irrgdotted'lines at 70, sembled' to shaft 71. Shaft71' extends outwardly and into bearing block 72 mounted upon the casting 61', and inwardly to 'a gearreducer indicated at 73, also mounted on casting 61, which gear reducer is belt driven by motor 74: Motor 74 restsupon plate '100 ported by'two pairs of rods 101 and ofrods 102"areanchored in bars are securedto bottom ofcasting 61;

103 which in 'turn A fiuid motor is shown at 8'!) which drives a speed re'-' ducer'81", the output shafts 82 of which (extending from opposite sides of said reducer 81) drive the screw jacks 83; there being one'ofsaidscrewjacks 83' at the outer end or" each shaft 823 These screw jacks are identical and butc-newill be described. As best seen in Figure 5,' the'outer end'of the'screw'84 of each screw jack is'rigidly assembled in thee-adjacent end of a clevis 85, the other end'of which clevis' is bifurcated so as to extend on oppo'site sides of a lugf87 which projects'from and is an integral part of casting 58;" The bifurcated ends of the clevis '85 and said-"lug S'Tare bored so as to receive the pin-86 whichholds 'said parts-pivotally united.

The fiuid motor and speed reducer 81 are rigidly anchored t'o the fiathorizontal-central portionof the-east ing=88; the-upstandingend portions- 88d of-which-casting- 88-are pivotally m6unted (see Fig"; 2) to the fixedcasting of the pit is a stationary central support dependingly sup 102." Upper ends" 3 61, by means of the shafts 89-89, so that when caused to do so, casting 88 may oscillate on shafts 8989, which are axially aligned. The base of each screw jack 83 is also fixedly mounted on an inclined portion 88bextending outwardly from portion 88a and inwardly from por-' tion 88. Thus when the fluid motor 80 operates the screw jacks, the screws thereof force the arms 57 and casting 58 to oscillate on shafts 59. Since the screw jacks are pivotally mounted to lug 87 of casting 58, which oscillates about shaft 59, the pin 86 will be moved in an arcuate' path, causing the screw jacks, the fluid motor 80 and speed reducer 81 mounted on casting 88 to pivot on shafts 89.

While I have shown and described the operation of the wheel lift arrangement as embodying two screw jacks, it is apparent that the unit could be designed to operate with but one, or more as desired.

For anchoring a vehicle truck, as indicated at 48, on the tracks over the machine in the proper position thereon for a pair of wheels thereof to be trued, there is shown in Figure 3 one of a pair of clamps and wheel blocks 90 applied to the opposite pair of truck wheels, which efiectively prevents movement of the truck on said rails while the wheels to be trued are being operated upon.

Operation For purposes of describing the operation of the machine, let it be assumed that the entire machine is lowered in the pit, and the sliding rails 36-36 are in closed position so as to form a continuous rail across the pit. The vehicle or vehicles having wheels to be trued are then brought on rails 32--32 from either direction and brought to rest withvthe wheels to be trued adjacent to the supporting and rotating wheels 5656. The clamps and wheel blocks 90-90 are then applied to the opposite pair of wheels in the truck to hold the truck immovable while the wheels are being operated upon. The fluid motor 80 is then actuated, which in turn actuates the screw-jacks causing the casting 58, which carries the supporting and rotating wheels 5656 therewith, to oscillate on shafts 59. The supporting and rotating rollers 56 thus move through an are having a radius centering on axis of shafts 59. As is best seen in Fig. 3 when wheels 56 move in this are the periphery of said wheels rises above the plane of the tracks, and when the axes of the vehicle wheels, he rollers and the shafts 59 are in line, the rollers have reached their maximum elevation. When in this position the rollers have forced the vehicle wheels off the track, and the movable track sections 36 are then moved to their open position shown in Fig. l to provide an opening in the track assembly under the pair of wheels to be trued. The wheels to be trued are then supported entirely by the supporting and rotating wheels 5656 and the fluid motor is then reversed until the oscillating casting 58 engages the fixed casting 61, as shown in Fig. 5, and which removes the load from the screw jacks. The truing machine is then raised and brought into operating position. The centering mechanisms 46-46 are then elevated until the center projections 4747 are located at the level of the centers of the car axle, and then the center projections are moved laterally until they enter the center notches in the ends of the car axle, and the center mechanism is then set in this position. It will be noted that the driving rollers are to one side of a vertical plane through the axes of the axles of the wheels to be trued. The cutter tools 50 -50 are now raised until they approach engagement with the tread of the car wheels to be trued. Motor 74 is then actuated which drives the supporting and driving rollers 5656 which in turn slowly rotate the vehicle wheels to be trued. Motors 95--95 (Fig. 1) are then operated which drive the cutters 50-50. The cutters are then slowly raised causing said cutters to bite into 4 sired depth of cut is accomplished. One complete revolution of the vehicle wheels after depth of cut has been accomplished is ordinarily sufiicient to true a given pair of wheels, but if not, the cutters can again be adjusted and another cut made.

When the truing operation is thus completed, the centers 4747 are withdrawn laterally, the wheel truing machine lowered vertically, the fluid motor 80 again actuated which causes the supporting wheels 5656 to again elevate the wheels which have been trued, the sliding rails then moved to closed position forming a continuous track across the pit, the supporting rollers continued on their arcuate movement until the vehicle wheels are lowered on the track, and the drive rollers positioned therebelow, when the vehicle may be moved oli the pit.

I claim:

1. In a device for truing wheels of a railway car while the wheels are mounted on said car and on longitudinally disposed track rails an oscillating frame pivotally mounted in said device; supporting and driving wheels mounted in said frame and rotatable about an axis transversely of the track rails and movable through an are in the path of the periphery of the wheels to be trued, for engaging and moving said railway car wheels vertically and supporting the same off the track, a second oscillating frame mounted in said device, and power means on said 7 second mentioned frame operatively'connected to said first mentioned oscillating frame for oscillating the same and causing said supporting and driving wheels to raise said wheels to be trued off said track.

2. In a device for truing wheels of a railway car while the wheels are mounted on said car and on longitudinally disposed spaced track rails having a slidable rail segment adapted to close the space between said track rails an oscillating frame pivotally mounted in said device, supporting and driving wheels mounted in said frame and rotatable about an axis transverselyof the track rails and movable through an arc in the path of the periphery of the wheels to be trued, for engaging and moving said railway car wheels vertically and supporting the same ofi the track so that the slidable rail segment may be moved,

and power means on said frame operatively connected to said supporting and driving wheels. for moving the same through said are and raising said wheels off said track.

3. In a device for truing wheels of a railway car while the wheels are mounted on said car and on longitudinally disposed trackrails; an oscillating frame, supporting and driving wheels, carried by said oscillating frame, and movable through an arc in the path of the periphery of the wheels to be trued, for engaging and moving said railway car wheels, vertically. and supporting the same off the track, a second oscillating frame, and power means trued. Ihe cutters are then further raised until the deon said second oscillating frame operatively connected to said first mentioned oscillating frame for oscillating same and causing said supporting and driving wheels to raise said wheels to be trued off said track.

4. In a device for truing wheels of a railway car while the wheels are mounted on said car and on longitudinally disposed spaced track rails, a fixed frame, an oscillating frame having spaced parallel arms pivoted at their lower ends to said fixed frame for oscillating movement in relation therewith, a supporting and driving wheel mounted on each arm in axial alignment and movable with the oscillating frame into engagement with the periphery of the wheels to be trued, and for raising said car wheels 05 the track, a second oscillating frame, and power means carried by said second oscillating frame and operatively connected with said first mentioned oscillating frame to oscillate same.

5. In a device for truing wheels of a railway car while said wheels are mounted on said car and on longitudinally disposed track rails, a fixed frame, an oscillating frame,

pivotally mounted onsaid fixed frame so as tooscillate Y in relation therewith, supporting and driving wheels car ried by said oscillating frame for engaging and raising said car wheels off the track, power means operatively connected to said supporting and driving wheels to rotate the same and thereby the wheels to be trued, a second oscillating frame and power means, carried by said second mentioned oscillating frame and operatively connected to the first mentioned oscillating frame to oscillate same.

6. In a device for truing wheels of a railway car while said wheels are mounted on said car and on longitudinally disposed track rails: a fixed frame disposed below the rails and transversely thereof, an oscillating frame pivotally mounted to said fixed frame, supporting and driving wheels mounted on said oscillating frame and movable through an arc in the path of the periphery of the wheels to be trued for engaging and raising said wheels to be trued off the track, an oscillating casting pivotally mounted to said fixed frame, screw jacks secured adjacent the base end to said oscillating casting, and pivotally mounted at the screw end to said oscillating frame, to cause the oscillating frame to oscillate, power means mounted upon the oscillating casting for operating said screw jacks, and power means supported by said oscillating casting for rotating the supporting and driving wheels.

References Cited in the file of this patent UNITED STATES PATENTS 

